Carbureter.



F. A. HEATH & w. 0. TAYLOR.

AABURETER.

APPLICATION FILED MAR. 3.1911.

1,172,595. Peeented M1916. f

2 SHEETS-SHEET l.

F.A. HEATH @L W. O. TAYLOR.

-CARBURETER. APPLICATION man MAR.3.191|.

l l 72,595 Patented Feb. 22, 1916 2 SHEETS-SHEET 2.

UNITED jestaras vrnfrana: omen I EoREEsT A. HEATH, on JERSEY CITY, NEWJERSEY, AND WILLIAM o. warnen, 0E

NEW YORK, N. Y. PANY, OIE JEILSEY eAnnUnE'rEa.

' of New York, respectively, have` invented new and useful lImprovementsin Qarbureters, of which the following is aspecication.

The invention relates to improvements in devices forfcarbureting andmixing air withV hydrocarbon liquid fuels such as are utilized in thehydrocarbon engines.

The invention particularly relates .to the ,means which regulate theamount of airv passing through the carbureter and the amount of fuelwhich is supplied to said air; It furthermore relates to a carbureterinwhich the air traveling through the carbun invention reference is'made'to the drawings the same.

in which,

Figure 1 shows a side view ofthe completed carbureter. VFig. 2 is aplan. view'bf Vvalve occupy when the carbureter is not being used. Fig.5 is a transverse sectional View taken on the line 5 5 of Fig. 3 lookingin the direction of the arrows. Figs.-6 and 7 are detail plan views ofthe bypass valve. Fig. 8 is a vertical section at right angles to thesection shown in Fig. 3. Fig.- 8 shows the-manner in which the' valveseats.

The completed carbureter comprises three distinct parts, namely, thefloat chamber A, the atomizing chamber B and the mixing chamber C. e

The float chamber A is provided with the supply duct 1y having at theextremity Specification of Letters Patent.v l

Application led Hai-eh 3, 1911. Serial No.- 612,027.

Fig. 3 is a transverse vertical ;'SAID TAYLGR ASSIGNOR T0 NEWl JERSEYCARBURETER GOM- CITY, NEW JERSEY, A CORPQRATIDN 0F NEW JERSEY.

Patented Feb. 22,1916.

thereof the drain cock`2.' There is an opening leading from the duct 1to the interiorv of the Aiioat chamberwhich is controlled by the valve 3to which is connected the vertical spindle 4. A float spindle 5' isslidable upon and relativeto the-valve spindle 4 and this float when theliquid inthe chamber is below a certain amount Arests upon the collar 6secured to the spindle 4 to depress the valve and permit fuel to enterthe chamber. There is `secured to the upper end of the spindle 4 aninverted cup 7 surrounded f by the cup shaped sleeve member 84vertically adjustable in the screw socket 9. Betweenthe cup members7and 8 there is a spring. whose tension can be regulated by the turningof the sleeve member 8 normally held from rotation in its socket by thespring pressed pin 10. l

The atomizing chamber B is provided at its lower end with the triangularair inlet opening 11 controlledv by the spring pressed curved valve 12which is of uniform width from end to end.` The fuel comes to theatomizing chamber from the float chamber through the Aducts 13, 14 and15 and the area of the discharge' opening is .controlled by a needlevalve 16 the position of which 'i can be regulated by turning the screwthreaded member 17 normally held from rol tation bythe spring pressedpin 18. At

`l9 is provided with a longitudinally extending aperture 21 throughwhich the air passing through the` carbureter normally travels and intothis aperture portion the I discharge end of the fuel supply terminates.A

Tt will therefore be apparent that the suction of the air upon the fuelsupply when the valve is seated will correspond to the amount of airdrawn or passing through the p carbureter. Now when the air required'for any certain position of the air inlet valve exceeds a certain amountthe suction will increase suiiiciently to cause a lifting of the 'valve19 from the seat and when this point has been reached it will beapparent that the suction of the air upon the fuel will notcorrespondinglyv increase 4the amount of fuel delivered thereto. inother words some of the air is ley-passed from 'the inlet end oli thecarburetor directly into the delivery side of the atomizing chamberwithout it all having to pass through thedraperture into which the fuelsupply discharges.

In order that the valve 19 may be properly maintained in place in theatomizing I detachably secured in place by the'bolts 23a.'

The spring pressed air inlet controllmg valve 12 previously reierred to.is carried on a shaft 25 having connected thereto the op.-

erating arm 26. This shaft also carries an arm 27 which has pivotedthereupon at its free end the curved cam 28. There is also carried bythe arm 27 a swiveled member 29 having a. threaded member 30 passingtherethrough and held from longitudinal. movement therein. A. nut 31with which the screw threaded member 30 engages is pivotally secured tothe cam 28 in a manner to effect the changing of, the radial position ofa portion of the cam relative to the axis of the shaft 25. Thecarburetor alsol has a rocker member 82 comprising a shaft 32a' parallelwith the shaft 25; an arm 33 secured to one end of shaft 32a, having aroller 34 at the free end thereof in engagement with the cam 28 and aforked arm secured at the other end of said shaft, which .straddles anut member 36 on the needle valve 16. It will thus be apparent that byswinging the lever v26 from the closed/position of the carburetor shownin Fig. 4, to the position shown in Fig. l, that the air valve 12 willbe moved from the dotted position shown in Fig. 3 to the full lineposition and 'that the needle valve will be drawn from closed positionto open position due to the fact that the radius of curvature of thecani 28 increases going away from the supporting arm 27.

The means which operatively connect the air inlet valve and the fuelsupply needle valve comprise a movable member namely the cam 28, theiree swinging end of which can be adjusted to different radial positionsrelative tothe axis of the shaft 25A andthe construction of theoperating parts in this connecting mechanism is such that in oneposition of the movable member a xed ratio between the openings oi' theiiuel and air supply may be maintained and in another position of themovable member other vary-` ing ratios may be maintained between the airand fuel supply openings. ln fact this. movable member can in oneposition main-` tain a constant ratio between the areas 1oit' theopenings during the movement of the airinlet `valve from closed to openposition in another position of the movable member the ratio of the iuelarea to the air area may be variably increased with the opening of theair valve while in another position of the movable member the ratio ofthe fuel opening to carburetor than if the air valve were not so`located. Y l l claim as my invention:

"l. ln f a oarbureting device having an atomizing eliamber and a mixingchamber the combination of a spring pressed valve in the atomizingIchamber, a bar detachably secured to the walls of the earburetingdevice, a valve spring between the valve and bar, and a mixing membercarriedby the bar.

2. In a carbureter a bar supporting at one side thereof downwardlyextending air valve uidingmembers, a hollow air valve member. slidablethereupon, fuel delivering means terminatimgr Within the opening of thevalve and a rotatable mixing device having its axis of rotation inalinement with the axis of the opening in the hollow valve member.

3. .d oarbureter having an upright casing with a main air controlledvalve at `the lower portion thereof, a fuel supply leading to theinterior of said casingf and terminating above the main valve opening, ahollow air valve within which said fuel supply terminates, atransversely extending; bar detachably secured in the upper part of saidcasing, depending members secured thereto for guiding said hollow airvalve, an upright stud carried by said bar and located between saiddepending guiding members, and a mixingy member mounted on said stud inthe path of the gaseous mixture which passes upwardly past said bar.

This specification signed and witnessed the 23d day of February, A.. D.1911, in the city of New York, State oi' New York.

FORREST A. HEATH. Signed in the presence of- Enwnv A. PACKARD, G.MCGRANN.

This specification signed and witnessed the 15th day of February, A. D.191.1, inthe city of New York in the State of New York VVlLLlAll/ O.TAYLOR. lSigned in the presence of- ED'WIN A. PACKARD, G. MCGRANN.

